Plug



FIG. 1 is a front perspective view of a plug;

FIG. 2 is a back perspective view of the plug;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left elevational view thereof

FIG. 6 is a right elevational view thereof;

FIG. 7 is a back elevational view thereof; and,

FIG. 8 is a front elevational view thereof.

The broken lines of portions of the plug in the drawings are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a plug, as shown and described. 